GB1359471A - High temperature process for thermoplastic filaments and films - Google Patents
High temperature process for thermoplastic filaments and filmsInfo
- Publication number
- GB1359471A GB1359471A GB3555970A GB3555970A GB1359471A GB 1359471 A GB1359471 A GB 1359471A GB 3555970 A GB3555970 A GB 3555970A GB 3555970 A GB3555970 A GB 3555970A GB 1359471 A GB1359471 A GB 1359471A
- Authority
- GB
- United Kingdom
- Prior art keywords
- temperature
- heating
- filaments
- filament
- heated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
- D01D5/247—Discontinuous hollow structure or microporous structure
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Artificial Filaments (AREA)
Abstract
1359471 Porous filaments RADUNER & CO AG 2 July 1971 [22 July 1970] 35559/70 Heading B5B [Also in Division C3] Melt-spun filaments or melt extruded films containing voids, vacuities, surface indentations and cracks having a total surface area (the total area on the inside and outside of the filament which is accessible to low molecular weight gases and liquids) which is at least three times (preferably at least 10 times) their average surface area as determined by multiplying the average circumference of the filaments by their length are prepared by a process which involves heating thermoplastic polymer filaments or films at a temperature at least 100‹ C. above the glass transition temperature of the polymer and cooling the heated material, the temperature and time of heating being such that the peripheral portions of the filaments or films are affected to a larger degree than the inner portions, thereby creating a temperature gradient across the material cross-section. Preferably the material is heated to a temperature at least 150‹ C. above its glass transition temperature; the time of heating is less than 15 sees. when the temperature of heating is near or above the softening point of the thermoplastic polymer and less than 1 sec. when the temperature is near or above the melting point of the polymer; and the filament is stretched by at least 5% its elongation at break during or after cooling. The filament may contain a liquid, gaseous or solid pore-forming agent which is preferably a swelling agent for the thermoplastic polymer and is applied prior to heating. Heating may be effected by infra-red, lasers, microwave, or with a liquid, gaseous or solid (fluidized bed) heating medium. In examples nylon 6 or 6 : 6 filaments are swollen in water, polyethylene glycol, dimethyl sulphoxide, moist air or ethanol, heated in ethylene glycol, paraffin oil, cetyl alcohol vapour, a fluidized sand bed or by infra-red for a time from 0À3 to 22 seconds at a temperature between 205 and 301‹ C. and are then cooled rapidly. In Example 9 a nylon 6 : 6 filament is cooled to - 60‹ C. in solid CO 2 and then rapidly heated for 0À3 secs. at 257‹ C. Example 10 relates to the production of a porous polyethylene terephthalate filament using cone. HCl as swelling/pore-forming agent and a heat treatment time of 3 seconds at 245‹ C.
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3555970A GB1359471A (en) | 1970-07-22 | 1970-07-22 | High temperature process for thermoplastic filaments and films |
ZA714455A ZA714455B (en) | 1970-07-22 | 1971-07-06 | High temperature process for modifying thermoplastic filamentous material |
SE7109283A SE386212B (en) | 1970-07-22 | 1971-07-19 | OF THERMOPLASTIC MATERIAL MELTING SPUNNING FIBER WITH MICROSCOPIC FORMES FOR INCREASING THE SURFACE OF FIBER, AND PROCEDURES FOR THE MANUFACTURE THEREOF BY HEAT TREATMENT OF A FIBER |
CH547382D CH547382A (en) | 1970-07-22 | 1971-07-20 | |
CH1070771D CH1070771A4 (en) | 1970-07-22 | 1971-07-20 | |
DE19712136218 DE2136218A1 (en) | 1970-07-22 | 1971-07-20 | High temperature process for the modification of thermoplastic fiber material |
CA118,785A CA1007029A (en) | 1970-07-22 | 1971-07-21 | High temperature process for modifying thermoplastic filamentous material |
NL7110044A NL7110044A (en) | 1970-07-22 | 1971-07-21 | |
BE770313A BE770313A (en) | 1970-07-22 | 1971-07-22 | PROCESS FOR MODIFYING THERMOPLASTIC FILAMENTOUS MATERIALS AT HIGH TEMPERATURES |
HK664/76*UA HK66476A (en) | 1970-07-22 | 1976-10-21 | High temperature process for modifying thermoplastic filaments and films |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3555970A GB1359471A (en) | 1970-07-22 | 1970-07-22 | High temperature process for thermoplastic filaments and films |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1359471A true GB1359471A (en) | 1974-07-10 |
Family
ID=10379091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3555970A Expired GB1359471A (en) | 1970-07-22 | 1970-07-22 | High temperature process for thermoplastic filaments and films |
Country Status (9)
Country | Link |
---|---|
BE (1) | BE770313A (en) |
CA (1) | CA1007029A (en) |
CH (2) | CH547382A (en) |
DE (1) | DE2136218A1 (en) |
GB (1) | GB1359471A (en) |
HK (1) | HK66476A (en) |
NL (1) | NL7110044A (en) |
SE (1) | SE386212B (en) |
ZA (1) | ZA714455B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103290498A (en) * | 2013-07-04 | 2013-09-11 | 吴江市汇泉纺织有限公司 | Melt spinning raising structure |
CN103290500A (en) * | 2013-07-04 | 2013-09-11 | 吴江市汇泉纺织有限公司 | Melt spinning structure |
CN103409831A (en) * | 2013-07-30 | 2013-11-27 | 苏州豪建纺织有限公司 | Gigging fuse wire structure |
WO2023036919A1 (en) * | 2021-09-10 | 2023-03-16 | Oceansafe Ag | Fiber |
-
1970
- 1970-07-22 GB GB3555970A patent/GB1359471A/en not_active Expired
-
1971
- 1971-07-06 ZA ZA714455A patent/ZA714455B/en unknown
- 1971-07-19 SE SE7109283A patent/SE386212B/en unknown
- 1971-07-20 DE DE19712136218 patent/DE2136218A1/en not_active Ceased
- 1971-07-20 CH CH547382D patent/CH547382A/xx unknown
- 1971-07-20 CH CH1070771D patent/CH1070771A4/xx unknown
- 1971-07-21 NL NL7110044A patent/NL7110044A/xx not_active Application Discontinuation
- 1971-07-21 CA CA118,785A patent/CA1007029A/en not_active Expired
- 1971-07-22 BE BE770313A patent/BE770313A/en unknown
-
1976
- 1976-10-21 HK HK664/76*UA patent/HK66476A/en unknown
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103290498A (en) * | 2013-07-04 | 2013-09-11 | 吴江市汇泉纺织有限公司 | Melt spinning raising structure |
CN103290500A (en) * | 2013-07-04 | 2013-09-11 | 吴江市汇泉纺织有限公司 | Melt spinning structure |
CN103290498B (en) * | 2013-07-04 | 2015-12-09 | 石狮市台瑞精密机械有限公司 | A kind of melt-spun texture |
CN103409831A (en) * | 2013-07-30 | 2013-11-27 | 苏州豪建纺织有限公司 | Gigging fuse wire structure |
WO2023036919A1 (en) * | 2021-09-10 | 2023-03-16 | Oceansafe Ag | Fiber |
Also Published As
Publication number | Publication date |
---|---|
ZA714455B (en) | 1972-03-29 |
CH547382A (en) | 1974-03-29 |
SE386212B (en) | 1976-08-02 |
NL7110044A (en) | 1972-01-25 |
CH1070771A4 (en) | 1973-09-14 |
BE770313A (en) | 1972-01-24 |
DE2136218A1 (en) | 1972-02-24 |
HK66476A (en) | 1976-10-29 |
CA1007029A (en) | 1977-03-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |